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3 years ago

HELP ME PLeaseee!!!!

Mathematics

2 answers:

Softa [21]3 years ago

6 0

Answer:

x= 8.5, 2x=17, (9x+5)=81.5

Step-by-step explanation:

since the sum of the interior angles of a triangle is 180 degrees, you must add all of the angles and set them equal 180:

$2x + 2(9x+5) = 180$

next distribute the 2 to 9x + 5.

$2x + 18x + 10 = 180$

next combine like terms (2x and 18x) and subtract 10 from 180.

$20x = 170$

finally, divide 170 by twenty.

$\frac{20x = 170}{20}\\,x=8.5$

the final answer is x=8.5

once x is determined, you can solve 2x and 9x+5.

$2(8.5)=17\\\\9(8.5) +5 =81.5$

Romashka-Z-Leto [24]3 years ago

3 0

6th of the term of 4th

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Help me please, I’ve been stuck on this. :(

maxonik [38]

Answer: 0.98 cents

Step-by-step explanation:

First you want to get the amount of apples to one pound.

3.5 to 1

3.5 divided by 3.5 equals to one.

Now you need to o the same thing to the cost

3.43 divided by 3.5

= 0.98

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4 0

2 years ago

Persevere Write the difference in factored form. (24x4 − 15x2 + 6x) − (10x4 + 5x2 − 4x)

Marizza181 [45]

Answer:

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Step-by-step explanation:

4 0

2 years ago

Select all the expressions equivalent to: (4^5)⋅4^3 Group of answer choice 2^14 4^12 2^16 16^8 4^8 16^4

kumpel [21]

Answer:

Choices given as $2^{16}, 4^8$ and $16^4$ are correct.

Step-by-step explanation:

Given expression is,

$(4^5)(4^3)$

By applying law of exponents in the given expression,

$(4^5)(4^3)=4^{5+3}$

$=4^8$

$(4^5)(4^3)=(2^2)^5(2^2)^3$

$=(2^{2\times 5})(2^{2\times 3})$

$=2^{10}\times 2^6$

$=2^{16}$

$=(2^4)^4$

$=(16)^4$

Therefore, choices given as $2^{16}, 4^8$ and $16^4$ are correct.

4 0

2 years ago

A pair of snow boots at an equipment store in Big Bear that originally cost $60 is on sale for 40% off. Then, you have a coupon

alexandr1967 [171]

Answer:

$30 i think

Step-by-step explanation:

because %40+%10=%50

and %50 is half of %100 so 60-(60×(50%)=30

sorry is its wrong

5 0

3 years ago

Can someone please help me with these questions?

Dmitrij [34]

Expanded form is writing out everything and no simplifying.

A. c times c

B. t times t times t times t

C. 2 times x times x times x

D. 4 times 4 times h times h

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Hope this helps :)

8 0

3 years ago